Generac 6024 vs 5993

Both the Generac 6024 and Generac 5993 pressure washers offer 3,100 PSI. Since pressure rating is the key most buyers use to narrow their choice, at least as a first cut, how should you proceed? Which model is better for you?

Special note: watch out for variations in model name like “6025” and “5994“, which simply signal the CARB-compliant models sold in California. That state has special air quality requirements that generate slightly different models and therefore varying model numbers.

Generac 6024Generac 5993
Outlet Pressure 3,100 PSI 3,100 PSI
Flow Rate 2.7 GPM 2.8 GPM
Cleaning Power 8,370 8,680
Engine 212cc 212cc
Gas Tank Capacity 0.90 Gallons 0.90 Gallons
Low Oil Shut Down
Recoil Start
Electric Start
Hose Length 30 ft. 35 ft.
Hose Material PVC/Plastic Steel Reinforced Polyurethane
Lance Length 20" 20"
Nozzles 5 (0°, 15°, 25°, 40°, Soap) 5 (0°, 15°, 25°, 40°, Soap)
Max Water Inlet Temp cold (less than 100°F/38°C) cold (less than 100°F/38°C)
Detergent Tank 2 (3/4 Gallons) 0 - Siphon Hose
Wheels 1,5" x 10" never-flat 3" x 10" never-flat
(L x W x H)
23 1/4" x 16" x 40 1/2" 24 1/2″ x 24 1/2″ x 28 3/4″ (handle down)
31 3/4" x 24 1/2" x 38" (handle extended)
Weight 67.5 lbs 102.5 lbs.
Review Generac 5993
Where to Buy? Best Price Best Price
CARB-Compliant Model Generac 6025 Generac 5994

Basic Similarities and Minor Differences

There’s much that’s the same about the Generac 5993 and the Generac 6024 pressure washers. So much, in fact, you might think at first blush that they’re the same unit with different model numbers. Not so.

You’ll find that – beyond the same pressure (3,100 PSI) – the two models offer nearly the same flow rate. The 6024 is 2.7 GPM and the 5993 2.8 GPM, not enough difference to matter.

Each achieves that pressure and flow by using the same 212cc OHV engine, which puts out 7 HP at 4000 rpm. Both have the same manual start, manual throttle and choke, and a low-oil shutdown mechanism. Each offers the same fuel capacity: 3.6 quarts (0.90 gallons).

However, in the case of the 6024 the oomph is provided by an axial pump; the 5993 houses a Triplex design with ceramic-coated plungers. The plungers on the 6024’s pump are ordinary stainless steel.

Is that important? It could be. Hard to be sure without long-term testing but the Triplex design typically offers greater durability. Still, barring quality control issues and other per-unit variances, the 6024 can be expected to last for years of hard use, too.

How about size? The 6024 comes with a fixed handle and measures 23 1/4″ x 16″ x 40 1/2″ (L x W x H); the 5993 comes with a foldable handle and is 24 1/2″ x 24 1/2″ x 28 3/4″ (L x W x H) with handle down and 31 3/4″ x 24 1/2″ x 38″ with the handle extended. Enough to matter? I’ll leave that one up to you to decide. However, the design of the 5993 probably does matter if you’re rough on equipment. Its roll-cage design really stands up well to punishment.

The 6024 is quite a bit lighter – 67.5 lbs – versus the 102.5 lbs of the 5993. That includes the gun/lance and hose in each case. Still, since they both come with 10″ never-flat tires does that make a big difference? Well, the ones on the 6024 are only 1.5″ wide and the ones on the 5993 are double that: 3″, so maybe.

Even so, in both cases they roll easily over rough ground. If you plan to lift the pressure washer into a truck frequently – say, to reach a job site – you might want the lighter unit. But if that’s how you plan to roll the more commercial-oriented 5993 might be better for you. A tough tradeoff – added weight vs more robust features.

Features, Where the Differences Start To Show

The specs are close enough that we haven’t yet come upon a big separator between the Generac 5993 and the Generac 6024. True, the pump is quite different in each but it’s tough to know which would actually perform longer in real-world use. There are no similar doubts when you start to look at the details of some of the features. There the differences become more clear.

The nozzles come in the same variety: 0°, 15°, 25°, and 40° as well as a soap tip for foaming jobs. On each model they attach via handy quick change connectors. The gun to lance connector is threaded in each case.

The gun to hose connector, however, differs between the two. The one for the 6024 is threaded; the 5993 uses a brass quick change connector. Personally, that last difference isn’t enough to move me one way or the other but let your preference be your guide.

What the connectors connect is where the rubber really meets the road, so to speak.

The hose on the 6024 is an ample 30 feet; the hose that comes with the 5993 is a whopping 35 feet. That’s one reason the 5993 gets the tag “commercial” in so much of Generac’s literature. Personally, I’d label it “prosumer” because it’s at the lower end of the scale for professional pressure washers, but that might be nitpicking.

The hose toughness is quite a bit different between the two models. The 6024 is rated for up to 3,100 PSI, so it’s operating at peak all the time. The 5993 is rated for 4,000 PSI, courtesy of the steel-mesh wrapping, so there’s some headroom. That will tend to show over time.

The lance material differs between the two as well. The 6024’s is chrome-plated steel. The 5993 uses stainless steel. The 6024 may look a little fancier and there’s no doubt both are pretty good. But if you’ve ever used chrome for a long time you’ll find that it does decay and discolor over time. Think of what old bumpers on cars look like.

The gun itself is different in each case. The 6024’s is good but ordinary. The 5993 gun is a professional grade. You can feel the difference. The 5993 is more robust and more comfortable. That can be a big issue if you plan to use the unit for several hours a day, many days a week. Even tough guys get hand fatigue.

There is one other difference that can be an even bigger issue, especially for buyers looking for a “commercial” unit. The 5993 has no onboard detergent tank; it uses a siphon hose to suck up detergent from a separate container. The 6024, by comparison, has two 3/4 gallon detergent tanks in the case. Even for pros the 6024 might prove a more convenient choice here.


The Generac 5993 and Generac 6024 pressure washers offer the same pressure and nearly the same flow rate. The 5993 gets its “commercial” label by offering a longer, more durable hose and sturdier pump, but it’s substantially heavier and larger. However, unless you plan to lift it often, the weight difference – 30 pounds – isn’t a big issue. I’d say, if you can find the 5993 at roughly the same price as the 6024, go for it.

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